First-principles study of color-tunable properties in Eu-doped Mg2SnO4 phosphors

Shahzad M., Ali R., Azam S., KHAN M., Hou H., Mohamed A., ...More

Materials Letters, vol.349, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 349
  • Publication Date: 2023
  • Doi Number: 10.1016/j.matlet.2023.134728
  • Journal Name: Materials Letters
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: Eu, Mg2SnO4 phosphors, Optical materials and properties, Photoluminescence
  • Middle East Technical University Affiliated: Yes

Abstract

The present study investigated the electronic and optical properties of a newly synthesized orange-emitting afterglow phosphor, namely Eu: Mg2SnO4, using the full potential linearized augmented plane wave (FP-LAPW) method. To calculate these properties, the generalized gradient (GGA + U) approximation was employed. The results showed that Eu: Mg2SnO4 exhibited a strong optical response in the visible region, thus highlighting its potential as an excellent candidate for various optoelectronic applications. Notably, the material demonstrated a promising band gap of 2 eV (620 nm), specifically in the orange-emitting afterglow phosphor category, while retaining a 3D structure. These findings suggest that Eu: Mg2SnO4 has promising potential for use in various optoelectronic devices.